Controller for dental treatment



FIG. 1 is a front view of a controller for dental treatment;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a perspective view from upper right side thereof; and,

FIG. 8 is a perspective view thereof, showing the state of use.

The broken lines in FIG. 8 are included for the purpose of illustrating environmental structure of the controller for dental handpiece and form no part of the claimed design. 

CLAIM The ornamental design for a controller for dental treatment, as shown and described. 